Safety hoisting hook



Patented Feb. 20, i923.

HUGO ERNEST DREWS, OF JERSEY CITY, NEWERSEY, ASSIGNOR 0l? OIllEvI-IALFrT0v naires stares "rarest-oie tritati.

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HERMAN r. niiasnwiirfrna, or innsisr cirr, New Ann ONE-HALF 'ro LELANDSTANFORD.

Application inea April ee,

To all 207mm t mag/.concern Be it known that I, HUGO ERNEST Dniiws, asubject of the King of Denmark, having declared my intentions ofbecoming a citizenof the United States, residing in Jersey City, HudsonCounty, and State of New Jersey, have invented certain new and usefulImprovements in Safety Hoisting Hooks, of which the following is aspeciiica-A tion.

My invention vrelates to that class of hooks which are used in hoistingpackages, bales 8:0., from the holds' or hatches or steainships, inwhich the rope or cable is attached to the upper or eye end of the hook,the other end of the rope or cable passing around la drum or windlassory other orin of hoist-ing appai'atus.

Heretofore accidents and loss ot life have been caused by the packagesialling off theend of the hook, by reason of the hook catching in someobject or for other reasons of the rope or cable becoming detached fromthe eye of the hook, and it is the object of my invention to guard andovercome these objectionable features by providing a hook which is freeof all projections on its surface, having a smooth and plain surface,and to guard against all possibility of the package becoming detachedfrom the hook when placed thereon.

My invention consists broadly in forming a hook in two sections, whichare mounted slidably upon each other, the upper end of one section:forming an eye for engaging a rope or cable, the other end forming ahook for engaging the sling for holding the package to be hoisted; andin providing means whereby the two sections are locked posi-v tivelytogether and held in this position until released by the operator.

The invention also includes minor details of construction hereinafterdescribed and claimed.

In the accompanying drawings,

Fig. l, is a side elevation of my hook, of a rope and the other endengaging` a sling on a bale;

'9 a side elevation of my hook, the

improved parts being shown in a locked position;

F ig. 3 a similar view, the sections being shown as spread apart, andthe middle portion of one section being broken away to ytion of thearrow a, and held in position by a showing the same attached to one endsiiin'rr Hgois'riiicf nooit. j

1922. serial iro'. 556,604.

more lclearly show oneof `the means of connecting the two sections;-

Fig. et, is an edge View t Fig. 2; l

slots, andthe i aken inthe direcn r I f i Y, Figs. o and 6, edge viewsof the twosec-` tions,`showing the straps spread apart to allow theinsertion of the sections inthe 'slots vbefore the straps are weldedtothe 'sides of their respective sections The hook H, as

a whole is formed of th two sections A, B. 'l e .The section A, isformed at its upper vend, with an eye a., ior engaging a ringy i", inthev rope or cable R, and to insure the cable or rope being held inplace, a springs, fastened at a', to the section A, and free at itsother end topermit of the insertion of 'the cable or rope'lt, isprovided. It is obvious that a bolt and nut may be provided with likeeffect, the bolt passing through the eye nut on its outer end The upperend of the section A, is Aformed witha recess a2, and the lower end A2,with a catch hoo-lc 0,, the purpose of which will be more fullyexplained.

The section A, at or near its upper end and at a prescribed a, is formedwith an elongated slot a3, having the shoulders a, at, for limiting theeX- tent of motion of the section B.

The section B, is formed at its upper end with a catch hook b, whichengages rthe distance below the eye recess a2, formed in the section A,when the two sections are brought an elongated slot Z, and shoulders 3,4, which limit the extent of motion of the section A, when in position.The hook B', vis formed at its lower endwith al recess Z, with which thecatch hook a, on the section A, engages when the parts are broughttogether locking the two sections positively with relation to eachother, in which position they will remain until released` by theoperator.'

rllhe sections A, B, are preferablx7 madev of metal and are droppedforged. The slots ai, b2, areformedby drilling or punching out the metalat the desired point, the straps a, o, being cut and forming openingsa33, Z933, (as shown in Figs. 5 to allow of the insertion of the sectionA, in place, before the straps a, o, are welded onto the sides of thesections A, B.

When it is desired to insert the lower end,`

together, and with as far as required, when the sections are ,t sametime engaging again locked together by pressing the lower section A2, ofsection A, with its catch hook a, into engagement with the recess b', inthe lower end of the loop B, and at the the catch hook b, with formed inthe upper end of the the recess a2, section A.

It will thus be seen that l provide a safety hoistinghook, that ispositive in action, in that the more strain applied to the lower loopB', the tighter the parts will be locked together, and at the same timeby my construction make a hook as a whole that is free ofall projectionsthat are liable to catch or interfere with .the operation of hoisting,and thereby prevent the possibility of the package becoming detachedfrom the hook.

What l claim as my invention and desire to secure by Letters Patent is,

1. A safety hoisting hook of the character designated, formed in twosections, one section having an eye and the other section formed with ahook portion, said sections being mounted loosely upon and held withineach other near their upper extremities substantially as described, eachof said sections being formed with a recess and catch hook forengagement with each other, for the purn both of said sections beingformed wt'lthslotsv therein whereby the said sections are mountedslidably upon each other, said slots being formed with shoulders-forl'imiting' the eX" tent of motion of said sections, and each of saidsections being formed with recesses land catch hooks for the purpose oflocking said sections together, for the purpose andsu'b` stantially inthe manner described.

HUGO ERNEST DREWS.

Witnesses:

D. W. GARDNER, HERMAN F. KIESEWETTER.

